Cite archived historical documents like this:
Author, A. A. (Year, Month, Day). Title of material. [Description of Material]. Name of Collection. (Call number, Box
number, File name or number, etc). Name of Repository. Location. (APA Style Manual, p. 212).
Johnson, H. G. (1907, March 4). Papers of Harvey Johnson. [Papers on Colorado water resources]. Water Resources
Archive. (Call number WHGJ). Colorado State University Library. Fort Collins, CO.
Cite letters like archived documents but include the author and recipient in the [Description of material] section (APA Style Manual, p. 212). For example:
Mann, T., (1936, June 15). Letter. [Thomas Mann writing to Alfred Knopf in Zurich]. Archival Material. (Call number
PT2625.A44Z5375 1936). Colorado State University Library. Fort Collins, CO.
Cite archived documents in-text like this:
Cite letters in-text like this:
(Thomas Mann to Alfred Knopf, 1936) (APA Style Manual, p. 212)
Cite interviews and oral histories using the interviewee or speaker as the author, and put the interviewer in the description (APA Style Manual, p. 213). For example:
Werth, J. (1996). The church and the Russian-Germans in the Siberian homeland today: A personal interview with His
Excellency, the Most Rev. Joseph Werth, Bishop of Siberia. [Eric J. Schmaltz interviews Joseph Werth]. Germans from Russia Heritage Collection. (Call number BX4705.W4634 A5 1996). North Dakota State University Libraries. Fargo, N.D.
Use Anonymous as the author only for documents that specifically say Anonymous. If the author is unknown, begin your citation with the title of the work (APA Style Manual, p. 177). For example:
Records of the Iliff and Platte Valley Ditch Company. (1884-1997). [Financial and Business records]. Water Resources
Archive. (Call number WIPV). Colorado State University Library. Fort Collins, CO.
In-text citation should use the first few words of the title. For example:
(Records of the Iliff, 1884)
Cite ancient Greek and Roman works in-text, but you don't need a citation in the reference list. Just make sure you put the translation you use (APA Style Manual, p. 177). For example:
(Aristotle, trans. 1931)